21780291286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{3083}}^1$

素因数の和:3301

約数の個数: 64

約数和(自身を含む): 36931023360

約数和(自身を除く): 15150732074

約数列:

[1, 2, 13, 26, 43, 71, 86, 89, 142, 178, 559, 923, 1118, 1157, 1846, 2314, 3053, 3083, 3827, 6106, 6166, 6319, 7654, 12638, 39689, 40079, 49751, 79378, 80158, 82147, 99502, 132569, 164294, 218893, 265138, 271717, 274387, 437786, 543434, 548774, 1723397, 2845609, 3446794, 3532321, 3567031, 5691218, 7064642, 7134062, 9412399, 11798641, 18824798, 19481477, 23597282, 38962954, 122361187, 153382333, 244722374, 253259201, 306764666, 506518402, 837703511, 1675407022, 10890145643, 21780291286]

約数ペア:

[(1, 21780291286), (2, 10890145643), (13, 1675407022), (26, 837703511), (43, 506518402), (71, 306764666), (86, 253259201), (89, 244722374), (142, 153382333), (178, 122361187), (559, 38962954), (923, 23597282), (1118, 19481477), (1157, 18824798), (1846, 11798641), (2314, 9412399), (3053, 7134062), (3083, 7064642), (3827, 5691218), (6106, 3567031), (6166, 3532321), (6319, 3446794), (7654, 2845609), (12638, 1723397), (39689, 548774), (40079, 543434), (49751, 437786), (79378, 274387), (80158, 271717), (82147, 265138), (99502, 218893), (132569, 164294)]